Inventor · disambiguated record
Ryuhei Sumida
Also filed as: SUMIDA RYUHEI
3 granted patents·1 pending application·5 citations·filing 2006–2015
57Inventor score
Technology areasB41J
Top patents by PatentIndex Score
4 records- 0183US9340028B2Liquid storing device, liquid storing method and inkjet recording deviceSCREEN HOLDINGS CO LTD·Filed 2015·Granted May 17, 2016·3 cites·7 claims
- 0259US8459784B2Discharge liquid agitating mechanism, and an inkjet recording apparatus having the discharge liquid agitating mechanismSUMIDA RYUHEI·Filed 2010·Granted Jun 11, 2013·1 cites·12 claims
- 0350US8226201B2Image recording apparatus and method of detecting ejection failure in pre-processing agent ejection nozzles in image recording apparatusSUMIDA RYUHEI·Filed 2009·Granted Jul 24, 2012·1 cites·4 claims
- 0432US2009015625A1Printing Apparatus And Cleaning Mechanism ThereofDAINIPPON SCREEN MFG·Filed 2006·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →